Control unit



FIG. 1 is a front elevational view of the control unit;

FIG. 2 is a rear elevational view of the control unit;

FIG. 3 is a left side elevational view of the control unit;

FIG. 4 is a right side elevational view of the control unit;

FIG. 5 is a top plan view of the control unit; and,

FIG. 6 is a bottom plan view of the control unit.

The broken line showing of is for illustrative purposes only and formsno part of the claimed design.

The ornamental design for a control unit, as shown and described.